The Claim

Vitamin K2 supplementation reduces the rate of arterial calcium deposition.

Source: Does Vitamin K2 Actually Protect Your Heart? (New Trial)

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
46score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking vitamin K2 supplements is associated with a lower rate of calcium buildup in the arteries.

See the scientific wording

Vitamin K2 supplementation reduces the rate of arterial calcium deposition.

Why this might work

Vitamin K2 activates a protein called matrix Gla protein by adding chemical groups to it; this activated protein binds to calcium in artery walls and stops it from forming hard deposits that stiffen the arteries.

Verified mechanismbased on 4 studies

What the research says

1 study

  1. Study: Vitamin K antagonism aggravates chronic kidney disease-induced neointimal hyperplasia and calcification in arterialized veins: role of vitamin K treatment?

    Taking vitamin K2 supplements helped reduce calcium buildup in the arteries of rats, even when they had kidney disease. This suggests it might help prevent harmful calcium deposits in human arteries too.

Related videos

Does Vitamin K2 Actually Protect Your Heart? (New Trial)

Dr Brad Stanfield

Does Vitamin K2 Actually Protect Your Heart? (New Trial)

Read analysis

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.